Figure 2.

Metaphase plates from the worms of the DV1/10 inbred subline with the “normal” karyotype (2n = 10; four large and six small metacentrics) (A) and with abnormal karyotypes (B–I). (B) 2n = 10; four large, five small metacentrics, one small acrocentric chromosome (indicated by the arrow); (C) 2n = 11; four large and seven small metacentrics (additional small chromosomes indicated by the arrow); (D) 2n = 15; four large and nine small metacentrics (additional chromosomes indicated by the arrow); (E) 2n = 12; five large and seven small metacentrics (additional chromosomes indicated by the arrow); (F) 2n = 14; five large and nine small metacentrics (additional chromosomes indicated by the arrow); (G) 2n = 11; four large and seven small metacentrics (additional metacentric indicated by the arrow); (H) 2n = 12; four large and seven small metacentrics and one small acrocentric chromosome (additional metacentric and acrocentric indicated by the arrow); (I) “abnormal” 2n = 8; two large metacentrics, one medium-sized acrocentric chromosome (acrocentric indicated by the arrow) and five small metacentrics. Chromosomes were stained with DAPI (4′,6-diamidino-2-phenylindole) (inverted images are shown). Scale bar: 10 µm.